Most undefeated top division sumo championship wins
- Who
- Hakuho Sho
- What
- 16 total number
- Where
- Japan (Nagoya)
- When
- 18 July 2021
The most undefeated top division sumo championship wins is 16 and was achieved by Yokozuna Hakuho Sho (Japan, b. Munkhbat Davaajargal, Mongolia) from 27 May 2007 to 18 July 2021.
Hakuho won the 2021 Nagoya Grand Sumo Tournament, with a 15–0 record. It was his 45th top division championship overall.